RIS is a keyworded catalog of over 40,000 references about the biology and management of birds of prey. It includes books, articles, theses, government reports, and other gray literature regarding raptors worldwide.
After the year 2010, new records have not been added to the RIS. This website will remain active until all records from the RIS have been imported into The Peregrine Fund's Global Raptor Information Network. You may want to check that system as well for current references.